The Arms of America, Rolling Stone

The Edge explains 'U2's call To Disarm' on the Elevation Tour at RollingStone.com.

On their recently wrapped tour, U2 used their nightly podium to powerfully address the issue of gun control. During their performance of The Joshua Tree's "Bullet the Blue Sky," the band screened a disturbing video montage created by artist Catherine Owens that included images of victims of gun violence and children toting firearms.

'The song needed something that would contemporize it,' says the Edge. 'We're treading a very fine line between being artists and wanting to lecture Americans about issues that are important. It's basically turning the mirror on the audience.'